Preparation of superconducting oxides and oxide-metal composites

Details Preparation of superconducting oxides and oxide-metal composites Preparation of superconducting oxides and oxide-metal composites

1987-03-27

1989-05-02

Lieberman, Paul

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

75234, 75235, 148430, 148431, 164462, 164463, 20419224, 252514, 252521, 423263, 423593, 423604, 423636, 427 62, 428545, 428614, 428930, C22C 2912, C23C 810, H01L 3912

Patent

active

048268089

ABSTRACT:
A method of preparing a superconducting oxide by combining the metallic elements of the oxide to form an alloy, followed by oxidation of the alloy to form the oxide. Superconducting oxide-metal composites are prepared in which a noble metal phase intimately mixed with the oxide phase results in improved mechanical properties. The superconducting oxides and oxide-metal composites are provided in a variety of useful forms.

REFERENCES:
patent: 3427154 (1969-02-01), Mader et al.
patent: 3796553 (1974-03-01), Daunt
patent: 3815224 (1974-06-01), Pickus et al.
patent: 3932315 (1976-01-01), Sleight
patent: 3954459 (1976-05-01), Schreiner et al.
patent: 4001146 (1977-01-01), Horowitz
patent: 4050147 (1977-09-01), Winter et al.
patent: 4171464 (1979-10-01), Steyert, Jr.
patent: 4264358 (1981-04-01), Johnson et al.
patent: 4339508 (1982-07-01), Tsuya et al.
patent: 4411959 (1983-10-01), Braginski et al.
patent: 4540546 (1985-09-01), Geissen
patent: 4701301 (1987-10-01), Kuwahara et al.
patent: 4713360 (1987-12-01), Newkirk et al.
patent: 4770701 (1988-09-01), Henderson et al.
Jin et al., Appl. Phys. Lett., 51(3), Jul. 20, 1987.
Bednorz et al., Z. Phys. B.-Condensed Matter, vol. 64, pp. 189-193 (1986).
McKinney, George, Supercurrents, vol. 2, Feb. 1988, pp. 21-24.
Halsar et al., Appl. Phys. Lett., 51(7), Aug. 17, 1987, pp. 538-539.
Shaphjain et al., Russian Journal of Inorganic Chemistry, vol. 24(6), 1979, pp. 820-824.
Gilbert et al., Thin Solid Films, vol. 54, 1978, pp. 129-136.
Saito et al., Japanese Journal of Applied Physics, vol. 26, No. 3, Mar. 1987, pp. L223-L224.
Tsurumi et al., Japanese Journal of Applied Physics, vol. 26, No. 5, May 1987, pp. L2856-L857.
Kv et al., "Superconductivity and Phase Stability in the Heavy Rare Earth Quaternary Compounds, RBa.sub.2 Cu.sub.3 O.sub.7, (R=Ho, Er, Tm, Yd, Lu)", High Temperature Superconductors (Proceedings of Symposium S, 1987, MRS Spring Meeting), pp. 177-178.
"Evidence for Superconductivity above 40 K in the La-Ba-Cu-O Compound System", Chu et al., Physical Review Letters, vol. 58, No. 4, Jan. 26, 1987, pp. 405-407.
"Bulk Superconductivity at 36 K in La1.8Sr0.2CuO4", Cava et al., Physical Review Letters, vol. 581, No. 4, Jan. 26, 1987, pp. 408-410.
"Superconductivity at 93 K in a New Mixed Phase Y-Ba-Cu-O Compound System at Ambient Pressure", Wu et al., 1987.
"High Pressure Study of the New Y-Ba-Cu-O Superconducting Compound System", Hor et al., 1987.
"Superconductivity at 90 K in a Multi-Phase Oxide of Y-Ba-Cu", Tarascon et al., 1987.
"Superconductivity at 40 K in the Oxygen-Defect Perovskites La2-xSrxCuO4-y", Tarascon et al., Science, 235, Mar. 13, 1987, pp. 1373-1376.
"Superconductivity: A New Era of Discovery for Electricity", The New York Times, Mar. 10, 1987.
Article in Asahi Newspaper, Mar. 10, 1987 (with English translation).
Vol. 26, No. 4, Apr. 1987, pp. L334-L336, "Preparation of a High Tc Superconductor by Oxidization of an Amorphous La1.8Sr0.2Cu Alloy Ribbon in Air", Matsuzaki et al., Japanese J. Appl. Physics.
"Formation of Perovskite Surface Layers by Oxidation of Cu-La-Sr Alloys", Gruen et al., J. Electrochem. Soc., 1987, pp. 1588-1589, vol. 134, No. 6.
"Glassy Yb.17Ba.33Cu.50 Alloy as Precursor for the High-Tc Oxide Superconductor", Yb1Ba2Cu3Ox, Lu et al., Mat. Lett., Acc., Jun. 1987.
Haldar et al., "EuBa2Cu3Ox Produced by Oxidation of a Rapidly Solidified Precursor Alloy: An Alternative Preparation Method for High-Tc Ceramic Superconductors".
Ohio State University, Invention Disclosure Sheet, Dec. 26, 1970, Rapp, "Process for Producing Interwoven Two-Phase Materials and Their Use to Produce Porous Metals and Compounds".

Affiliated with

Also associated with

Rating

Preparation of superconducting oxides and oxide-metal composites does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of superconducting oxides and oxide-metal composites, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of superconducting oxides and oxide-metal composites will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-584970